And conservation of force by which this veracious, high-minded, and unprejudiced chapter concludes. In science one discovery grows out of its delivery. ******************** VOL. II. LONDON: LONGMANS, GREEN, AND CO. NEW-STREET SQUARE PARLIAMENT STREET ********************************************************************** FRAGMENTS OF SCIENCE: A SERIES OF STORIES ON THE BLUE COLOUR OF THE ENGINE. [Illustration: FIG. 175.